I forgot in the previous commit to update the version as I had changed the
tarball hash.
I also modified a bit the launcher script, since xz should only be needed by
the installer.
Since there is no way to modify either steam.sh or the steam binary as they are
hash checked, I took the approach of bypassing steam.sh and create a script
that does its job.
For now it segfaults, but when I try to run under strace, it works perfectly.
Need to check this.
The binaries that get copied to $HOME need patchelf to run, and after that I
need all the runtime libs in the library path. Still not working as I need
glibc2.15.
The script installed with this expression only copies a boostrapper and another
script to the user's home folder. Those also need to be patched to get on with
the installation.
